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<body>Dear all,<BR> <BR>We have a 7206 w/NPE300 running as a LNS terminating pppoe sessions from our telco. We are concurrently running around 360 pppoe sessions.<BR> <BR>Recently. I noticed that our 7206 is having extremely high cpu, at times going to 100%, please see below<BR> <BR>CPU utilization for five seconds: 99%/42%; one minute: 99%; five minutes: 99%<BR> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process <BR> 1 0 75 0 0.00% 0.00% 0.00% 0 Chunk Manager <BR> <BR> 5 472509060 101324023 4663 7.65% 8.80% 8.84% 0 Pool Manager <BR> 37 10810547881019294234 1060 22.79% 25.16% 25.51% 0 IP Input <BR><BR> 101 705044020 800103660 881 18.89% 21.35% 19.34% 0 L2TP data daemon <BR> 102 53153196 10197928 5212 2.19% 0.46% 0.45% 0 L2TP mgmt daemon <BR><BR> <BR>It seemed that Pool Manager + IP Input + L2TP data daemon together is causing this issue. I was searching for documents regarding this on google and came to this mailing list. I am wondering if you guys can help me out by identifying the mis-configuration that I have on my end as it is my understanding that a 7206 should at least take close 1000 pppoe sessions. Thank You in advance for your input.<BR> <BR> <BR>hostname LNS<BR>!<BR>boot system slot1:c7200-is-mz.122-32.bin<BR>boot system slot1:c7200-is-mz.120-3.T3<BR>aaa new-model<BR>aaa authentication login default local<BR>aaa authentication login no_rad line<BR>aaa authentication ppp default group radius local<BR>aaa authentication ppp vpdn group radius<BR>aaa authorization network default group radius<BR>aaa authorization configuration default group radius<BR>aaa accounting delay-start<BR>aaa accounting exec default start-stop group radius<BR>aaa accounting network default start-stop group radius<BR>enable secret 5 XXXXXXXXXXXXXXXXXXXXXXXXXXX<BR>!<BR>clock timezone EST -5<BR>clock summer-time EDT recurring<BR>ip subnet-zero<BR>no ip source-route<BR>ip cef<BR>!<BR>!<BR>ip name-server XXXXXX<BR>ip name-server XXXXXX<BR>ip name-server XXXXXX<BR>!<BR>vpdn enable<BR>! <BR>vpdn-group XXXXXXXX<BR>accept-dialin<BR> protocol l2tp<BR> virtual-template 1<BR> terminate-from hostname XXXXXX<BR> local name XXXXXXX<BR> lcp renegotiation always<BR>!<BR>interface FastEthernet0/0<BR> ip address X.X.X.X 255.255.255.192<BR> no ip mroute-cache<BR> duplex full<BR>!<BR>interface FastEthernet1/0<BR> no ip address<BR> no ip mroute-cache<BR> duplex full<BR>!<BR>interface FastEthernet1/0.401<BR> description !!XXXXXXXXXXXXXXXXXXXXXXXX!!<BR> encapsulation dot1Q 401<BR> ip address 10.70.X.X 255.255.255.252<BR> no ip mroute-cache<BR>!<BR>interface FastEthernet2/0<BR> description !!Internet Feed!!<BR> ip address Y.Y.Y.Y 255.255.255.252<BR> no ip mroute-cache<BR> duplex full<BR>!<BR>interface Virtual-Template1<BR> mtu 1492<BR> ip unnumbered FastEthernet2/0 <BR> peer default ip address pool internet1 internet2<BR> ppp authentication pap vpdn<BR>!<BR>ip local pool internet1 A.A.A.A B.B.B.B<BR>ip local pool internet2 C.C.C.C D.D.D.D<BR>ip classless<BR>ip route 0.0.0.0 0.0.0.0 Y.Y.Y.Y<BR>no ip http server <BR>!<BR>ip radius source-interface FastEthernet0/0<BR>radius-server host <FONT face="">X.X.X.X</FONT> auth-port 1645 acct-port 1646<BR>radius-server host X.X.X.X auth-port 1645 acct-port 1646<BR>radius-server key 7 ZZZZZZZZZZZZZZZ<BR> <BR>Anthony<BR><br /><hr />Be one of the first to try <a href='http://ideas.live.com/programpage.aspx?versionId=5d21c51a-b161-4314-9b0e-4911fb2b2e6d' target='_new'>Windows Live Mail.</a></body>
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